BMW 1 series running cost

So I’m planing on buying my first car in finland. I’m looking at BMW 1 series. For example something like in the url above. I just wanted to know from others with similar experience who owns a similar car how is the maintenance cost in Finland for a BMW 1 series? I’m on PhD salary so wanted to know if I’m making the right choice. Other alternative is a nissan qashqai. Would really appreciate if someone can give any feedback on this.